Form clip



J y 3s F. G. KUGEL I 2,124,982

I FORM CLIP Filed March 20, 1937 FIG. 2 FIG.,3'

FIG. 4 'I'FIG'LS INVENTOR FREDERICK G. KUGEL ATTORNEY Patented July 26, 193 2,1243% UNITED STATES PATENT orrtcs FORM CLIP Frederick G. Kugel, Bloomfield, N. J., assignor to The M. W. Kelloggfla, New York, N. Y., a corporation of Delaware Application March 20,- 1937, Serial No. 132,173

Claims. (Cl. 72122) This invention relates, in general, to a form was impaled on the projecting nails until it was clip or brace and is particularly adapted to be supported in the desired position.

used in connection with the protective coating of This practice has several disadvantages among exposed metal surfaces. which is the dimculty of accurately positioning 5 More particularly this invention is adapted to the shooting strip on the supporting nails so that be used in the process of applying coverings of a true guide line or surface is defined. Another cementitious material to the exposed surfaces of difficulty is encountered in attempting to suitmetal structures whether for the purpose of inably place shooting strips at corners or the outer sulating, waterproofing or fireproofing, or for the edges of fianges and the like.

10. sake of appearance. Hence, one of the principal objects of this in-- lo'i In the art of structural steelwork, although vention is to provide a metal clip or bracket not necessarily limited thereto, it has become a adapted to be attached to a metal surface for the more or less regular practice to plaster the expurpos 0f pp t ng objects therefrom.

posed portions of the completed metal structure Another object is to provide a metal clip or 15, with a cementitious mixture forthe purpose of support which may be readily attached to a corg. protecting them from the elements. ner surface for the purpose of suspending or As known to those well versed in the art, this supporting objects therefrom. is commonly done by a methodknown. as the Still another and more specific object is to Gunite process, or Guniting- As carried out, provide a metal form clip adapted to be attached this embodies the use of a cement gun through -to a metal surface for the purpose of supporting 20 which the mixture is forced by compressed air. a form or frame a fixed distance from the metal The surface to be coated is first prepared so surface. that the distinctive form and contour of the A further object is to provide a metal p structure will be preserved in outline after the uppo capable of be ched &0 fiat metal coating is applied. In other words, the structure surfaces either perpendicularly r at an angle 25 is not buried in the cementitious material but is theretomerely covered with a coating a few inches in A Still further Object is to provide a metal thickness. The material is usually reenforced by p, one end of Which is adapted to be rigidly a mesh held firmly in position closely adjacent attached to a metal surface. and the otherend 30, the metal member. I of which is shaped to provide an impaling means In order to follow the true line and surface so p Which an Object may be imp e the that every angle, surface, sharp arris and fillet p p of p rtwill be clearly delineated, and to insure uniform These and other j ts are e fected by this application of th ti it, i necessary t invention, as will be apparent from the following shooting strips. These are usually thin wood the p y ng drawing form g a P Of strips or boards which are erected near the line s app n which:

of intersecting or adjacent surfaces. They are 1 s a View i e eva Showing a W used either for the purpose of sighting the true ferred embodiment of the metal form clip adapt- 40 edge line, or for actually molding each corner or ed for use on either fiat or corner surfaces. 40 arris. Where the surfacing is to be completed F g. 2 is a view similar to Fig. 1 s ow a by hand they provide a convenient guide for the modified form of clip also adapted for use on trcwelling operation. flat or corner surfaces.

One of the chief difficulties encountered in this Fig. 3 is an elevation view of a modified form 45. type of work has been in connection with the of clip designed for use on flat surfaces. erection of the shooting strips. Ordinarily the g- 4 iS a V Showing a form 19, of the only available surface to which they may be attype shown in Fig. 1, positioned on the edge of tached is the very surface which is to be coated. a metal member. Since it is impossible to nail the strips to the Fig. 5 is a view in elevation showing a form.

5 erect guides or alignment boards known a description and claims taken in connection with metal work the common practice has been to clip, of the type illustrated in Fig. l, positioned 15!) weld the head of an ordinary nail to the metal on a flat metal surface; and,

surface with the body portion of the nail sub- Fig. 6 is a view showing how the clips may be stantially normal to the surface. A series of used to support guide strips for a float board. these nails were so disposed at convenient points In accordance with my invention, I provide, as

about the surface and the wooden shooting strip shown in Fig. 1, a metal strip or plate H which 55.

is preferably cut from strips of thin metal stock having the desired physical properties.

The ends of the clip H are irregularly shaped, which shaping may be done in a single cutting operation or the shaping may be done in subsequent operations.

The lower, or tail end of the clip is formed with a notch i2, the vertex of which is on the longitudinal center line, thus giving the end a fish-tail appearance. As shown in the drawing, the notch I2 is a right angle, which is most desirable for use on corners where the adjacent surfaces meet at a right angle, although for corners having a different angle a corresponding notch angle may be used.

The notching operation results in the formation of two projecting points l3 and M which may be bent in either direction along their broadest surface to form feet upon which the clip may rest in an upright position as shown in Fig. 5, or which will give a broad contacting area when held against any: surface.

Since the clip is designed primarily to be suspended from metal objects or surfaces, the feet formed by bending the points i3 and I4 may be easily secured to the metal surface by welding. In actual usage this operation may be speedily performed. The workman merely grasps the clip, bends the points l3 and I4 over in either the same or opposite directions with a pair of pliers, holds the clip in position against the metal structure and welds the feet, formed by bending the points over, to the metal surface as illustrated in Fig. 5. A series of these clips may be disposed along the surface at spaced intervals to provide a plurality of supports for the shooting strips.

With the construction of the clip as: shown in Fig. 2, it is obvious that only one foot support may be formed since only one point 15 is provided. The types of clip shown in Figs. 1 and 2 when attached to a flat surface form a very rigid and sturdy support. 7

Fig. 3 shows a clip with a squared end. While this type of clip eliminates the operation of bending over the end points to form feet, and thus may be more readily applied, it requires more welding to give it a degree of sturdiness equivalent to that obtained where the bent over points are used. To secure this clip to the fiat metal surface, weld metal is applied along the lower edge.

Where the cementitious coating is to be applied to an irregular surface, such as the corner of a beam or flange, it is sometimes desirable tosupport the shooting strip at an angle to both surfaces, as is shown in Fig. 4. To do this, the clip is placed on the corner of the structure or workpiece !6 with the corner fitting into the notch 12. Weld metal 51 is then deposited along the intersection of the sides of the notch 12' and the surfaces of the workpiece.

The central portion of the upper end of the clip is extended to form a spike I8, the tip of which is cut to form a flat end I9. To either side of the point I! are formed shoulders 20 and 2|.

In placing the shooting strip 22in position, it is driven on to the spiked portion l1 until the strip contacts the shoulders 26 and 2|. The shoulders act as a stop or guide to maintain the distance between the workpiece l6 and the shooting strip substantially uniform, -so that an even layer of material may be applied in the Guniting operation.

When a plurality of such clips are placed along the edge of a metal surface to support a shooting strip, as shown in Fig. 4, the outer corners of the clip shoulders may be used to sight the imaginary finish line. By applying the cementitious material on both surfaces until the sides of the clip are covered, a bevel edge is formed on the corner of the finished structure. eled edge is as wide as the width of the clip.

After the coating has been applied and has solidified, the shooting strips are removed leaving the spike, I1 projecting from the beveled edge of' the coated surface. The spikes may be left protruding, or may be clipped off or bent over flush with the'beveled surface.

The tip portion ofthe spike I! is made blunt in order to decrease its tendency to split the shooting stripswhen. the latter are of thin wood material, as is commonly the case. However, with different materials or under certain conditions it is contemplated that pointed spikes may be used. v

It will be'noted that the portions of the shoulders 20 and 2| immediately adjacent the base of the spike I! are out out below the shoulder line at 23. The purpose of cutting away in this manner is to provide a minimum of exposed metal. surface when the shooting strip is removed.

Where it is desirable or necessary to finish with a square, instead of a beveled, edge, the coating material may be directly applied in that fashion by sighting to the point where. the imaginary center line of the clip intersects the under surface of the shooting strip. This point, which is designatedlfl in Fig. 4 is more easily located because of the cut away portions 23, it being merely necessary to estimate the center of the base portion of thespike I1 and to deposit the materialup to that point. Obviously when the shooting strip is removed not only the spike ll, but also portionsof the shoulders 20 and 21 will project through the surface of the coating. These may all be clipped off.

Fig. 6 shows a method of using the clip in which none of the metal parts will be visible after the coating is applied, and in which mechanical levelling means may be employed to obtain a smooth fiat surface. The clip is secured to the corner of the workpiece, as before, and: anarrow strip of wood 25 is impaled on the spike H;

The coating 'material is. then deposited to the outer edge of the wood strip. When this has 7 been done to'both sides and the material has set, the wood strip is pulled .off the spike, thus 'leavinga channel in the cementitious material.

This channel-is then filled with the coating material and trowelledto form either a beveled or a sharp corner.

To coat a surface having two opposite edges, the clips are placed and welded, as shown, on the opposite corners, the wood strips 25 are drivenonto the spikes l1, and the cementitious material is. sprayed on the metallic surface to a depth sufficient to cover the outermost corner of the wood strip 25. A float board 26, such as is commonly used in smoothing and levelling cement work, may then be slid along the edges of the'wood strips to trim off the excess of coating material. In this way a fiat, level surface is assured.

From the foregoing it will be observed that I have devised a simple and efficient means for attaching forms to metal structures which not This bevonly supports the same in any desired position but also serves as a guide means to insure uniform application of the cementitious coating.

While this invention has been shown in but three forms, it will be apparent to those skilled in the art that it is not so limited but is susceptible to various other changes and modifications without departing from the spirit thereof, and it is desired therefore that only such limita tions shall be placed thereon as are imposed by the prior art or are specifically set forth in the appended claims.

I claim:

1. A form clip adapted to be welded to metal structure members for the support of forms or guides in spaced relation thereto comprising a flat body of weldable material having one end extended longitudinally to form a spike adapted for limited penetration into the form or guide, and the opposite end cut irregularly to provide extended portions bendable transversely of the plane of said body to form feet adapted for engagement with the surface of the structure member for the purpose of welding thereto, the sides of said extended portions being formed to engage in abutting relation the adjacent surfaces at the corners of said structure members.

2. A form clip adapted to be welded to metal structure members for the support of forms or guides in spaced relation thereto, comprising a main body portion of substantially thin weldable material having one end adapted for limited penetration into said form for rigid engagement therewith, and the opposite end notched to form a pair of extending members, the sides of said notch being adapted for abutting engagement with the sides adjacent the edges of said structure members, said extending members being readily bendable transversely of said main body portion to form a substantially broad base which when placed in abutting relation to a surface of said metal structure member provides an extensive contacting area for the purpose of welding.

3. A form clip adapted to be welded to metal structure members for the support of forms or guides in spaced relation thereto comprising a flat sheet metal body having part of one end extended longitudinally to form a fiat-endspike,

the unextended portion forming a shoulder to limit the penetration of said spike into the form or guide, the opposite end of said body being irregularly extended to form a portion bendable transversely of the plane of said body to provide a foot which when placed against a surface of the form offers a substantially broad contacting surface for the purpose of welding, the foot end of said body having fiat edge surfaces extending transversely relative to the longitudinal axis of said spike.

4. A form clip adapted to be welded to metal structure members for the support of forms or guides in spaced relation thereto comprising, a flat body portion of weldable material having one end extended longitudinally to form a spike adapted for limited penetration into said form or guide, the tip of said spike being flattened to minimize its splitting action when driven into the form or guide, and the opposite end having an irregular extension transversely bendable from the plane of said flat body to form a foot adapted to be welded to a flat surface of said metal structure member, a side of said extension in its normally unbent position being transverse relative to the longitudinal axis of said spike.

5. A form clip adapted to be welded to metal structure members for the support of forms or guides in spaced relation thereto comprising a flat sheet metal body having a longitudinally extending spike portion at one end thereof, said spike being flat at the end and having shoulder portions at its base which limit its penetration into the form or guide, said shoulders being raised at their outer ends so that a portion of the spike will be visible without the form or guide; the opposite end of said metal body being irregularly extended to provide portions bendable transversely from the plane of said body to form feet adapted to engage and be 'welded to the surface of the metal structure member, the edges of said irregularly extended portions presenting flat surfaces transverse relative to the longitudinal axis of said spike whereby the latter end of said clip is adapted for abutting engagement with the edges of said structure members.

FREDERICK G. KUGEL. 

